Plugging device and plugging system

The invention provides a plugging device which is used for plugging defects in a vasculature, the plugging device comprises a first plugging disc, a second plugging disc and a tightening line, the first plugging disc and the second plugging disc are used for covering different openings of the defects respectively, a connecting piece is arranged on the first plugging disc, a threading hole is formed in the connecting piece, the tightening line penetrates through the threading hole of the connecting piece, the two ends of the tightening line penetrate through the second plugging disc and form an adjusting line knot on the side, away from the first plugging disc, of the second plugging disc, and the distance between the first plugging disc and the second plugging disc can be adjusted through the end of the tightening line. The invention further provides a plugging system provided with the plugging device. 本发明提供了一种封堵器，用于封堵脉管系统中的缺损，所述封堵器包括第一封堵盘、第二封堵盘及收紧线，第一封堵盘和第二封堵盘分别用于覆盖缺损的不同开口，所述第一封堵盘上设有连接件，所述连接件设置有穿线孔，所述收紧线穿过所述